97700928 has 84 divisors (see below), whose sum is σ = 280007568. Its totient is φ = 30051840.

The previous prime is 97700927. The next prime is 97700957. The reversal of 97700928 is 82900779.

It is a super-2 number, since 2×97700928² = 19090942664122368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 97700928.

It is not an unprimeable number, because it can be changed into a prime (97700923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30943 + ... + 33953.

Almost surely, 2^97700928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97700928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140003784).

97700928 is an abundant number, since it is smaller than the sum of its proper divisors (182306640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97700928 is a wasteful number, since it uses less digits than its factorization.

97700928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3052 (or 3029 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 97700928 is about 9884.3779773944. The cubic root of 97700928 is about 460.5741538910.

The spelling of 97700928 in words is "ninety-seven million, seven hundred thousand, nine hundred twenty-eight".